[Bug 889341] Making back-to-top arrow appear on all pages.
[Bug 886863] Increasing desktop width for sitewide page layout.
 Collapse user menu when user clicks off it bug 889316
Merge pull request #543 from juliaelman/889341-top-arrow

[Bug 889341] Making back-to-top arrow appear on all pages.
Merge pull request #546 from alexgibson/collapse-menu-click-off-bug-889316

 Collapse user menu when user clicks off it bug 889316
Merge pull request #544 from juliaelman/886863-increase-desktop-width

[Bug 886863] Increasing desktop width for sitewide page layout.
merging homepageredux into master